MICROWAVE ACTIVE-FILTERS BASED ON COUPLED NEGATIVE-RESISTANCE METHOD

被引：68
|
作者：
CHANG, CY [1 ]
ITOH, T [1 ]
机构：
[1] UNIV TEXAS,DEPT ELECT & COMP ENGN,AUSTIN,TX 78712
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1990年 / 38卷 / 12期
关键词：
D O I：
10.1109/22.64569
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new coupled negative resistance method to build a microwave active band-pass filter is introduced. Based on this method, four microstrip line end-coupled filters are built. Two are fixed-frequency one-pole and two-pole filters, and two are tunable one-pole and two-pole filters. In order to broaden the bandwidth of the end-coupled filter a modified end-coupled structure is proposed. Using the modified structure, an active filter with a bandwidth up to 7.5% is built. All of the filters show significant passband performance improvement.
引用
收藏
页码：1879 / 1884
页数：6
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